WO2001003209A1 - Melange de particules de metal et/ou d'alliage et d'une substance electrolytique liquide et procede permettant de le preparer - Google Patents
Melange de particules de metal et/ou d'alliage et d'une substance electrolytique liquide et procede permettant de le preparer Download PDFInfo
- Publication number
- WO2001003209A1 WO2001003209A1 PCT/EP2000/003798 EP0003798W WO0103209A1 WO 2001003209 A1 WO2001003209 A1 WO 2001003209A1 EP 0003798 W EP0003798 W EP 0003798W WO 0103209 A1 WO0103209 A1 WO 0103209A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- particles
- alloy
- metal
- zinc
- compact
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/06—Electrodes for primary cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/244—Zinc electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0085—Immobilising or gelification of electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a mixture of metal and / or alloy particles and a liquid electrolytic medium, and a method for producing the same.
- Mixtures of this type are known and are used for various purposes, with particular significance being those mixtures in which the metal and / or alloy particles dissolve in the liquid electrolytic medium and can thereby give off electrical current. These are, in particular, mixtures of metal or alloy particles in which the particles can dissolve in an acid or alkali. These chemical reactions are used to a considerable extent for the production of electrical current, for example in batteries and accumulators, i.e. rechargeable batteries.
- a very frequently used mixture consists of zinc particles or particles of a zinc alloy and solutions of alkali as a liquid electrolytic medium. These mixtures are used, for example, together with mixtures of manganese dioxide with portions of a liquid electrolytic medium, the two mixtures usually being separated from one another by a separator.
- the particles of zinc or zinc alloys are produced from liquid zinc or liquid zinc alloys by various known methods, for example by atomizing or granulating. Depending on the process conditions, the grain sizes, the grain size distribution and the outer shapes of the particles can be set, with sieve fractions from oversize and undersize often being separated.
- Pages 1 and 2 of this document summarize both the current state of the art and the steps taken to improve the quality.
- the quality should be improved by using uniformly shaped zinc particles of the same size.
- Uniform platelets are preferably used, which are mixed in more or less large amounts with other zinc powders, so that the tap density is reduced. By adding approximately 10% of such platelets, the zinc content can be reduced from 69 to 71% to 62 to 64%.
- the object of the invention is to provide mixtures of metal and / or alloy particles and a liquid electrolytic medium which are easily reproducible, do not lead to segregation and, when installed in batteries and accumulators, have optimal properties with regard to performance and service life , Resilience due to strong discharge and mechanical shocks while avoiding the release of gases.
- This object is now achieved in that the metal and / or alloy particles are irregularly shaped, have an uneven surface and have a bulk density below 33% by weight of the specific density of the compact metal and / or the compact alloy and the volume of the liquid Medium is larger than it corresponds to the spaces between the particles with a dry bed.
- Such mixtures have optimal properties when the medium is solidified by a gelling agent.
- Mixtures in which the metal and / or alloy particles consist of zinc and / or a zinc alloy are preferably used. These mixtures should preferably contain less than 65% by weight, preferably even less than 62% by weight, of zinc and / or zinc alloy.
- Metal and / or alloy particles suitable for the mixtures according to the invention which have an uneven surface and a bulk density below 33% by weight of the specific density of the compact metal and / or the compact alloy, can be produced, for example, by a granulation process in which spicy zinc particles are formed.
- Spratzige particles arise in particular when sudden gases escape, when metal melts and a porous cast is formed. These particles have a very broad particle size distribution, they are shaped unevenly and have an uneven surface. The surface is therefore relatively large in relation to the weight unit of the metal. The particles are nevertheless able to make a lot of direct electrical contact.
- a gelling agent in the liquid electrolytic medium the sensitivity to mechanical impacts is significantly reduced.
- a bulk density below 33% by weight of the specific density of the compact metal and / or the compact alloy means a bulk density of approximately 2.3 g / ml.
- spongy granules described above it is also possible to use bulk densities below 2.3 g / ml and thus produce battery fillings with a content of less than 62% by weight of zinc mixture.
- these mixtures have excellent properties in terms of performance, service life, resilience due to strong discharge and mechanical shocks while avoiding the release of large amounts of gases.
- the bulk density of such metal and / or alloy particles is determined, for example, in accordance with ASTM-B 212. Such mixtures still have sufficient direct contact between almost all particles, but also have sufficient gaps for the electrolyte and the reaction products in the generation of the current.
- the present invention thus relates not only to the mixture of metal and / or alloy particles and a liquid electrolytic medium, but also to the process for producing such a mixture, which is characterized in that the liquid metal or the liquid alloy is sprayed or granulated processed into particles which are shaped unevenly, have an uneven surface and a bulk density below 33 wt .-% of the specific gravity of the compact talls and / or the compact alloy, optionally after separation of oversize and / or undersize are introduced into a liquid electrolyte, which optionally contains a gelling agent or to which a gelling agent is added, the volume of the liquid electrolyte being greater than the gaps between corresponds to the metal or alloy particles with dry fill.
- the invention relates to the use of unevenly shaped metal and / or alloy particles which have an uneven surface and a bulk density below 33% by weight of the specific density of the compact metal and / or the compact alloy for the production of mixtures with a liquid electrolytic medium in which the volume of the medium is greater than the spaces between the particles in the case of dry bed.
- Figure 1 shows a previously common product with predominantly round particles and a bulk density of 3.62 g / ml.
- FIGS. 2 to 4 show spongy products of the same zinc alloy with bulk densities of 2.40 g / ml (FIG. 2), 2.00 g / ml (FIG. 3) and 1.85 g / ml (FIG. 4).
- FIGS. 3 and 4 show optimal results when they are processed into a mixture with a liquid electrolytic medium which contains more liquid medium than corresponds to the spaces between the particles in the case of a dry bed. Batteries made from such mixtures have optimal results in terms of performance, service life, resilience due to strong discharge and mechanical shocks while avoiding the release of gases.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Primary Cells (AREA)
- Secondary Cells (AREA)
- Conductive Materials (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00927082T ATE233952T1 (de) | 1999-06-30 | 2000-04-27 | Gemisch aus metall- und/oder legierungsteilchen und einem flüssigen elektrolytischen medium sowie verfahren zur herstellung desselben |
CA002378673A CA2378673A1 (fr) | 1999-06-30 | 2000-04-27 | Melange de particules de metal et/ou d'alliage et d'une substance electrolytique liquide et procede permettant de le preparer |
DK00927082T DK1194964T3 (da) | 1999-06-30 | 2000-04-27 | Blanding af metal- og/eller legeringspartikler og et flydende, elektrometrisk medium samt fremgangsmåde til fremstilling af samme |
US09/926,833 US6706220B1 (en) | 1999-06-30 | 2000-04-27 | Mixture consisting of metal particles and/or alloy particles and of a liquid electrolytic medium and method for producing the same |
DE50001402T DE50001402D1 (de) | 1999-06-30 | 2000-04-27 | Gemisch aus metall- und/oder legierungsteilchen und einem flüssigen elektrolytischen medium sowie verfahren zur herstellung desselben |
EP00927082A EP1194964B1 (fr) | 1999-06-30 | 2000-04-27 | Melange de particules de metal et/ou d'alliage et d'une substance electrolytique liquide et procede permettant de le preparer |
JP2001508519A JP4610146B2 (ja) | 1999-06-30 | 2000-04-27 | 金属粒子及び/又は合金粒子と液体電解溶媒との混合物、及びそれらの製造方法 |
AU45581/00A AU4558100A (en) | 1999-06-30 | 2000-04-27 | Mixture consisting of metal particles and/or alloy particles and of a liquid electrolytic medium and method for producing the same |
SI200030045T SI1194964T1 (en) | 1999-06-30 | 2000-04-27 | Mixture consisting of metal particles and/or alloy particles and of a liquid electrolytic medium and method for producing the same |
HK02107359.8A HK1046063B (zh) | 1999-06-30 | 2002-10-08 | 金屬顆粒和/或合金顆粒與液體電解介質組成的混合物及其製備方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19930214 | 1999-06-30 | ||
DE19930214.6 | 1999-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001003209A1 true WO2001003209A1 (fr) | 2001-01-11 |
Family
ID=7913217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/003798 WO2001003209A1 (fr) | 1999-06-30 | 2000-04-27 | Melange de particules de metal et/ou d'alliage et d'une substance electrolytique liquide et procede permettant de le preparer |
Country Status (12)
Country | Link |
---|---|
US (1) | US6706220B1 (fr) |
EP (1) | EP1194964B1 (fr) |
JP (1) | JP4610146B2 (fr) |
CN (1) | CN1188922C (fr) |
AT (1) | ATE233952T1 (fr) |
AU (1) | AU4558100A (fr) |
CA (1) | CA2378673A1 (fr) |
DE (1) | DE50001402D1 (fr) |
DK (1) | DK1194964T3 (fr) |
ES (1) | ES2188539T3 (fr) |
HK (1) | HK1046063B (fr) |
WO (1) | WO2001003209A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1356881A1 (fr) * | 2002-04-25 | 2003-10-29 | Grillo-Werke AG | Poudre de zinc ou d'alliage de zinc pour batteries alcalines |
US6706220B1 (en) | 1999-06-30 | 2004-03-16 | Grillo-Werke Ag | Mixture consisting of metal particles and/or alloy particles and of a liquid electrolytic medium and method for producing the same |
WO2012114407A1 (fr) * | 2011-02-22 | 2012-08-30 | パナソニック株式会社 | Batterie secondaire alcaline |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7045253B2 (en) * | 2002-01-07 | 2006-05-16 | Eveready Battery Company, Inc. | Zinc shapes for anodes of electrochemical cells |
US7413703B2 (en) * | 2003-01-17 | 2008-08-19 | Eveready Battery Company, Inc. | Methods for producing agglomerates of metal powders and articles incorporating the agglomerates |
US7556888B2 (en) | 2004-02-13 | 2009-07-07 | Eveready Battery Company, Inc. | Electrochemical cell |
US7364819B2 (en) | 2004-06-28 | 2008-04-29 | Eveready Battery Company, Inc. | Alkaline electrochemical cell with a blended zinc powder |
US9105923B2 (en) | 2013-02-13 | 2015-08-11 | Nanophase Technologies Corporation | Zinc anode alkaline electrochemical cells containing bismuth |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3238240A1 (de) * | 1982-10-15 | 1984-04-19 | Grillo-Werke Ag, 4100 Duisburg | Verfahren zur herstellung von zinkpulver fuer alkalische batterien durch verduesung |
JPS59139558A (ja) * | 1982-11-30 | 1984-08-10 | Toshiba Battery Co Ltd | アルカリ電池 |
US4606869A (en) * | 1984-08-27 | 1986-08-19 | The New Jersey Zinc Company | Method of making air atomized spherical zinc powder |
JPH07161356A (ja) * | 1993-12-10 | 1995-06-23 | Fuji Elelctrochem Co Ltd | アルカリ電池 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4386019A (en) * | 1981-07-29 | 1983-05-31 | The United States Of America As Represented By The United States Department Of Energy | Method of making electrodes for electrochemical cell |
US4487651A (en) * | 1983-04-06 | 1984-12-11 | Duracell Inc. | Method for making irregular shaped single crystal particles and the use thereof in anodes for electrochemical cells |
JP3215446B2 (ja) * | 1991-03-12 | 2001-10-09 | 三洋電機株式会社 | 亜鉛アルカリ電池 |
JPH07254406A (ja) * | 1994-03-15 | 1995-10-03 | Toshiba Battery Co Ltd | 無汞化亜鉛アルカリ電池 |
JP3056417B2 (ja) * | 1996-07-12 | 2000-06-26 | 富士電気化学株式会社 | アルカリ電池用負極亜鉛基合金粉 |
JP2001524254A (ja) * | 1997-05-02 | 2001-11-27 | エヴァレディー バッテリー カンパニー インコーポレイテッド | 電気化学電池のアノード用亜鉛形材 |
JPH10334908A (ja) * | 1997-05-30 | 1998-12-18 | Fuji Elelctrochem Co Ltd | アルカリ電池用負極亜鉛基合金粉 |
WO2001003209A1 (fr) | 1999-06-30 | 2001-01-11 | Grillo-Werke Ag | Melange de particules de metal et/ou d'alliage et d'une substance electrolytique liquide et procede permettant de le preparer |
-
2000
- 2000-04-27 WO PCT/EP2000/003798 patent/WO2001003209A1/fr active IP Right Grant
- 2000-04-27 CA CA002378673A patent/CA2378673A1/fr not_active Abandoned
- 2000-04-27 AT AT00927082T patent/ATE233952T1/de not_active IP Right Cessation
- 2000-04-27 ES ES00927082T patent/ES2188539T3/es not_active Expired - Lifetime
- 2000-04-27 EP EP00927082A patent/EP1194964B1/fr not_active Expired - Lifetime
- 2000-04-27 AU AU45581/00A patent/AU4558100A/en not_active Abandoned
- 2000-04-27 DK DK00927082T patent/DK1194964T3/da active
- 2000-04-27 DE DE50001402T patent/DE50001402D1/de not_active Expired - Lifetime
- 2000-04-27 US US09/926,833 patent/US6706220B1/en not_active Expired - Lifetime
- 2000-04-27 CN CNB008094888A patent/CN1188922C/zh not_active Expired - Fee Related
- 2000-04-27 JP JP2001508519A patent/JP4610146B2/ja not_active Expired - Fee Related
-
2002
- 2002-10-08 HK HK02107359.8A patent/HK1046063B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3238240A1 (de) * | 1982-10-15 | 1984-04-19 | Grillo-Werke Ag, 4100 Duisburg | Verfahren zur herstellung von zinkpulver fuer alkalische batterien durch verduesung |
JPS59139558A (ja) * | 1982-11-30 | 1984-08-10 | Toshiba Battery Co Ltd | アルカリ電池 |
US4606869A (en) * | 1984-08-27 | 1986-08-19 | The New Jersey Zinc Company | Method of making air atomized spherical zinc powder |
JPH07161356A (ja) * | 1993-12-10 | 1995-06-23 | Fuji Elelctrochem Co Ltd | アルカリ電池 |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 268 (E - 283) 7 December 1984 (1984-12-07) * |
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6706220B1 (en) | 1999-06-30 | 2004-03-16 | Grillo-Werke Ag | Mixture consisting of metal particles and/or alloy particles and of a liquid electrolytic medium and method for producing the same |
EP1356881A1 (fr) * | 2002-04-25 | 2003-10-29 | Grillo-Werke AG | Poudre de zinc ou d'alliage de zinc pour batteries alcalines |
WO2003090956A1 (fr) * | 2002-04-25 | 2003-11-06 | Grillo-Werke Ag | Poudre de zinc et poudre d'alliage de zinc pour piles alcalines |
US7524582B2 (en) | 2002-04-25 | 2009-04-28 | Grillo-Werke Ag | Zinc powder or zinc alloy powder for alkaline batteries |
KR100978749B1 (ko) * | 2002-04-25 | 2010-08-30 | 그릴로-베르케 아게 | 알칼라인 배터리를 위한 아연 분말 또는 아연합금 분말 |
WO2012114407A1 (fr) * | 2011-02-22 | 2012-08-30 | パナソニック株式会社 | Batterie secondaire alcaline |
Also Published As
Publication number | Publication date |
---|---|
ES2188539T3 (es) | 2003-07-01 |
CA2378673A1 (fr) | 2001-01-11 |
EP1194964B1 (fr) | 2003-03-05 |
CN1188922C (zh) | 2005-02-09 |
HK1046063B (zh) | 2003-07-18 |
JP2003504804A (ja) | 2003-02-04 |
JP4610146B2 (ja) | 2011-01-12 |
US6706220B1 (en) | 2004-03-16 |
DK1194964T3 (da) | 2003-06-30 |
AU4558100A (en) | 2001-01-22 |
EP1194964A1 (fr) | 2002-04-10 |
DE50001402D1 (de) | 2003-04-10 |
ATE233952T1 (de) | 2003-03-15 |
HK1046063A1 (en) | 2002-12-20 |
CN1358336A (zh) | 2002-07-10 |
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